Gallipoli Campaign

Constantinople Campaign
Occupation of ConstantinopleFrench general Henri Gouraud arriving in Constantinople, February 27, 1916

October 20, 1915


February 26, 1916


Thrace, Ottoman Empire


Allied Victory

Major battles:

Şarköy; Malkara; Tekirdağ ; Murath; Çorlu; Constantinople


Flag of the United Kingdom United Kingdom
Flag of Australia Australia
British Raj Red Ensign India
Flag of New Zealand New Zealand
Flag of France France

Flag of the Ottoman Empire Ottoman Empire
Flag of the German Empire German Empire
Flag of Austria-Hungary (1869-1918) Austria-Hungary


Flag of the United Kingdom Ian Hamilton
Flag of the United Kingdom Herbert Kitchener
Flag of the United Kingdom John de Robeck
Flag of the United Kingdom Julian Byng
Flag of France Henri Gouraud
Flag of France Maurice Bailloud

Flag of the Ottoman Empire Mehmed V
Flag of the Ottoman Empire Enver Pasha (POW)
Flag of the Ottoman Empire Mehmet Esat Bülkat
Flag of the Ottoman Empire Mehmet Vehib Kaçı
Flag of the Ottoman Empire Mustafa Kemal (POW)


Flag of the United Kingdom 503,000
Flag of France 78,000

Flag of the Ottoman Empire 462,000

Casualties and Losses



The Constantinople Campaign, also known as the Thracian Campaign, took place in the the Thracian region of the Ottoman Empire between October 20, 1915 and February 26, 1916. A military successor to the Gallipoli Campaign, the Constantinople Campaign aimed at securing the Thracian region from the Turks, and taking the capital, Istanbul (Constantinople), allowing supplies lines to the Russian Empire to be reopened. 

After the initial victory at Gallipoli, and the subsequent retreat of the Turks back the their capital, the allies moved quickly northward, not wishing to be held down by the trench warfare that caused thousands of casualties during the days at Gallipoli. This progression was furthered following the battle of Çorlu on Christmas day, and the capture of one of the more notable Ottoman commanders, Mustafa Kemal. This victory allowed allied troops to push toward the capital at an even faster rate, and when French troops arrived at the gates of the city on January 3, 1916, the siege of Constantinople had begun.

After one month of brutal fighting around the city, British troops managed to penetrate past Turkish defences, and after five days of mobile fighting back and forth inside the cities walls, Constantinople officially surrendered with the capture of Enver Pasha (the Ottoman minister of war), and the retreat of the Ottoman Sultan Mehmed V. The victory allowed trade routes to be reopened to Russia, and quickened the defeat of the Ottoman empire, which would eventually come on April 9, 1916.